How is pki.goog?

Looks fine risk 0/100

Registered 10 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 39 ms.

Why

02050100

finecarefulhigh risk

·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.

Site

200

39 ms

HTTPS

56 d

left on a Google Trust Services certificate

Age

10 years

registered 2016-06-13

Blocklists

listings across 5 lists

Everything we looked at

DNS records6 record types

A	216.239.32.29
AAAA	2001:4860:4802:32::1d
MX	5 smtp.google.com
NS	ns4.zdns.google ns3.zdns.google ns2.zdns.google ns1.zdns.google
TXT	google-site-verification=bldSOD4em6X-G7MCd9EJUqkBhBcN0Ch9eVi4l-rhHU8 v=spf1 -all
CAA	{'type': 'CAA', 'issue': 'pki.goog', 'critical': 0}

RegistrationMarkMonitor Inc.

registrar	MarkMonitor Inc.
registered	2016-06-13
expires	2027-06-13
last changed	2026-05-17
owner	REDACTED FOR PRIVACY
nameservers	ns1.zdns.google ns2.zdns.google ns3.zdns.google ns4.zdns.google
status	client delete prohibited client transfer prohibited client update prohibited server delete prohibited server transfer prohibited server update prohibited

registered 2016-06-13expires 2027-06-13

HTTPS certificate56 days left

valid	yes
issuer	Google Trust Services
covers	*.pki.goog, pki.goog
protocol	TLSv1.3

issued 2026-09-28expires 2026-12-21

DNSSECsecure

Domain is properly signed — chain validated by an independent validating resolver

. → goog → pki.goog

Email authenticationgood

SPF	pass `v=spf1 -all`
DMARC	pass policy reject
DKIM	none of 1 common selectors

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade B · 170/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

45/45missing: DKIM Presence

Advanced Security

20/25missing: Mail Server Configuration

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 5 lookups

SURBL MultidomainURIBL MultidomainSpamCop216.239.32.29Barracuda216.239.32.29UCEPROTECT Level 1216.239.32.29

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=pki.goog" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=pki.goog"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on pki.goog. Reference: /llms.txt.

Watch pki.goog. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days